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                    Closing price on 2/23/2018
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                    | Open | 28.00 |  
                    | High | 28.00 |  
                    | Low | 28.00 |  
                    | Volume | 0 |  
                    | Split-adjusted Price | 12.33 |  
                
             | 
 |  DSC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/23/2018 | +0.80 / +2.94% | 28.00 | 28.00 | 28.00 | 28.00 | 28.00 | 12.33 | 0 |   |  
            | 2/22/2018 | -0.80 / -2.86% | 32.00 | 32.00 | 27.20 | 27.20 | 27.95 | 11.98 | 30,700 |   |  			
            | 2/21/2018 | +0.80 / +2.94% | 28.00 | 28.50 | 28.00 | 28.00 | 28.20 | 12.33 | 2,900 |   |  
            | 2/13/2018 | 0.00 / 0.00% | 27.10 | 27.30 | 27.10 | 27.10 | 27.21 | 11.93 | 3,500 |   |  			
            | 2/12/2018 | +0.90 / +3.44% | 27.50 | 27.50 | 27.00 | 27.10 | 27.28 | 11.93 | 6,300 |   |  
            | 2/9/2018 | +0.50 / +1.92% | 27.40 | 27.40 | 25.80 | 26.50 | 26.24 | 11.67 | 2,700 |   |  			
            | 2/8/2018 | -1.00 / -3.70% | 28.50 | 28.50 | 26.00 | 26.00 | 26.34 | 11.45 | 1,750 |   |  
            | 2/7/2018 | 0.00 / 0.00% | 29.90 | 29.90 | 27.00 | 27.00 | 27.26 | 11.89 | 1,100 |   |  			
            | 2/6/2018 | 0.00 / 0.00% | 26.00 | 27.00 | 25.00 | 27.00 | 26.30 | 11.89 | 13,100 |   |  
            | 2/5/2018 | -0.10 / -0.37% | 27.00 | 27.00 | 27.00 | 27.00 | 27.00 | 11.89 | 9,300 |   |  			
            | 2/2/2018 | +0.10 / +0.37% | 27.20 | 27.20 | 27.00 | 27.00 | 27.10 | 11.89 | 550 |   |  
            | 2/1/2018 | -0.60 / -2.18% | 27.00 | 27.50 | 26.90 | 26.90 | 27.05 | 11.85 | 4,400 |   |  			
            | 1/31/2018 | 0.00 / 0.00% | 28.00 | 28.00 | 26.80 | 27.50 | 27.39 | 12.11 | 1,400 |   |  
            | 1/30/2018 | +1.00 / +3.77% | 28.00 | 28.00 | 27.50 | 27.50 | 27.67 | 12.11 | 300 |   |  			
            | 1/29/2018 | -0.90 / -3.28% | 27.20 | 27.20 | 26.40 | 26.50 | 26.64 | 11.67 | 4,000 |   |  
            | 1/26/2018 | -0.40 / -1.46% | 27.60 | 27.70 | 27.00 | 27.00 | 27.43 | 11.89 | 10,200 |   |  			
            | 1/25/2018 | +0.40 / +1.48% | 27.50 | 27.60 | 27.40 | 27.40 | 27.47 | 12.07 | 63,900 |   |  
            | 1/24/2018 | 0.00 / 0.00% | 25.60 | 27.00 | 25.40 | 27.00 | 25.71 | 11.89 | 73,200 |   |  			
            | 1/23/2018 | +1.00 / +3.85% | 25.10 | 27.00 | 25.00 | 27.00 | 25.11 | 11.89 | 54,100 |   |  
            | 1/22/2018 | 0.00 / 0.00% | 25.10 | 26.00 | 25.00 | 26.00 | 25.12 | 11.45 | 93,750 |   |  			
            | 1/19/2018 | -1.30 / -4.94% | 25.50 | 28.90 | 24.00 | 25.00 | 25.94 | 11.01 | 27,650 |   |  
            | 1/18/2018 | +0.40 / +1.54% | 30.30 | 30.30 | 25.00 | 26.30 | 25.22 | 11.58 | 6,700 |   |  			
            | 1/17/2018 | +2.40 / +10.21% | 27.00 | 27.00 | 25.90 | 25.90 | 26.37 | 11.41 | 8,200 |   |  
            | 1/16/2018 | +3.00 / +14.63% | 23.50 | 23.50 | 23.50 | 23.50 | 23.50 | 10.35 | 100 |   |  			
            | 1/15/2018 | 0.00 / 0.00% | 20.50 | 20.50 | 20.50 | 20.50 | 20.50 | 9.03 | 0 |   |  
            | 1/12/2018 | +2.60 / +14.53% | 20.50 | 20.50 | 20.50 | 20.50 | 20.50 | 9.03 | 3,100 |   |  			
            | 1/11/2018 | +2.30 / +14.74% | 17.90 | 17.90 | 17.90 | 17.90 | 17.90 | 7.88 | 2,100 |   |  
            | 1/10/2018 | +2.00 / +14.71% | 15.60 | 15.60 | 15.60 | 15.60 | 15.60 | 6.87 | 100 |   |  			
            | 1/9/2018 | 0.00 / 0.00% | 13.60 | 13.60 | 13.60 | 13.60 | 13.60 | 5.99 | 22,700 |   |  
            | 1/8/2018 | +1.70 / +14.29% | 13.60 | 13.60 | 13.60 | 13.60 | 13.60 | 5.99 | 100 |   |  |